Aspect ratio fixer for youtube that works around some people's disability to properly encode 21:9 (and sometimes, 16:9) videos.
Now with more automatic detection!
If you're using a 21:9 monitor, then you probably noticed that most "21:9" videos on youtube (e.g. almost every movie trailer that exists) and netflix are actually 16:9 videos with letterbox encoded. That means you usually see black borders on all four sides. Ultrawidify aims to fix that.
By default, only Youtube and Netflix are enabled (because that's the only two I can test on). Other sites need to be enabled manually and aren't guaranteed to work.
Github's here: https://github.com/xternal7/ultrawidify
=== Features ===
* Can be enabled or disabled on per-site basis
* Crop video to fit screen (no stretching. Supported aspect ratios: 21/9 (1:2.39), 16:9, 16:10, one (1) custom aspect ratio)
* Automatic aspect ratio detection (can be enabled/disabled entirely or on a per-site basis, separately of the extension)
* [NEW in v3!] Stretch video to fit the screen (4 different approaches. Please note that this is experimental feature that hasn't been thoroughly tested)
* Supports Youtube theater mode
=== Known issues and limitations ===
* Unclear how extension handles sites with more than one video per page.
* Autodetection can sometimes be wrong
* DRM schemes prevent autodetection from working. Unlike with Firefox, there's no workaround for this issue that would work with Chrome and most Chrome-based browsers.
* That new stretching mode wasn't thoroughly tested yet. Issues may be present.
* Enabling extension everywhere (as opposed to whitelisted sites) could break some websites.